Surface Properties and HDN Activity of Mo2N

被引：0

作者：

Wang Xinping ^{[1
]}

Zhang Wenyu ^{[2
]}

Ren Tieli ^{[1
]}

Jin Hengfang ^{[2
]}

Xin Qin ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

[2] Inner Mongolia Polytech Univ, Hohhot 010062, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 1996年 / 12卷 / 06期

关键词：

Passivation; Mo2N; Sulfidation; HDN;

D O I：

10.3866/PKU.WHXB19960607

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of passivation and sulfidation on the bulk structure and surface properties of Mo2N were studied by using XRD, H-2-TPD and TPS methods. The characterization results of Mo2N combined with the pyridin HDN activity show that the surface properties of Mo2N are changed significantly after passivation or sulfidation in spite of the bulk structure unchanged. The H-2-TPD profile for passivated Mo2N is obviously different from that of the fresh one and the pyridin HDN activity over passivated Mo2N is much lower as well. According to the behavior of Mo2N in different passivating conditions and H-2-TPD results, we suggest that the passivation of Mo2N produces Mo-2 on the sample surface. Based on the H-2-TPD profiles and the pyridin HDN activity over Mo2N samples which either had been sulfidized or not and the TPS profiles, we conclude that the surface structure of molybdenum nitride has been changed to sulfide under sulfiding condition.

引用

页码：513 / 517

页数：5

共 9 条

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